61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
/* -*-comment-start: "//";comment-end:""-*-
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* Mes --- Maxwell Equations of Software
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* Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
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*
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* This file is part of Mes.
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*
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* Mes is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or (at
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* your option) any later version.
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*
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* Mes is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Mes. If not, see <http://www.gnu.org/licenses/>.
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*/
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#if !BOOT
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SCM
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define_env (SCM e, SCM a)
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{
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return vm_call (vm_define_env, e, cell_undefined, a);
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}
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SCM
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vm_define_env ()
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{
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SCM x;
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SCM name = cadr (r1);
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if (type (name) != PAIR)
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x = eval_env (caddr (r1), cons (cons (cadr (r1), cadr (r1)), r0));
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else {
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name = car (name);
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SCM p = pairlis (cadr (r1), cadr (r1), r0);
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cache_invalidate_range (p, r0);
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x = eval_env (make_lambda (cdadr (r1), cddr (r1)), p);
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}
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if (eq_p (car (r1), cell_symbol_define_macro) == cell_t)
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x = make_macro (name, x);
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SCM entry = cons (name, x);
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SCM aa = cons (entry, cell_nil);
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set_cdr_x (aa, cdr (r0));
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set_cdr_x (r0, aa);
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SCM cl = assq (cell_closure, r0);
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set_cdr_x (cl, aa);
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return entry;
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}
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#else // BOOT
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SCM define_env (SCM r1, SCM a){}
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SCM vm_define_env (SCM r1, SCM a){}
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#endif
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SCM
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define_macro (SCM r1, SCM a)
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{
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}
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